Proper air flow and attic insulation is critical to avoid premature aging of shingles. In the wintertime, improper ventilation will cause ice-damming, and interior leaks will occur as a result.
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VENTILATION SYSTEMS
VENTILATION SYSTEMS
p: (705) 524-1622
f: (705) 524-3636
943 Notre Dame Ave,
Greater Sudbury, ON P3A 2T7